如何去除字符串中非汉字、非字母、非数字的字符？-PHP Tutorial-php.cn

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如何去除字符串中非汉字、非字母、非数字的字符？

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Jun 23, 2016 pm 02:01 PM

如何去除字符串中非汉字、非字母、非数字、非常见标点符号(逗号，句号，反斜杠)的所有字符

如：4/13の困扰(☀,∴…３???...?三Ⅲ) ？？爱我中华= =扬我国威【转】

过滤后：4/13困扰9728爱我中华扬我国威转

回复讨论(解决方案)

字符串替换或是正则匹配

我就是想请教这个正则要如何写？

你意思是只要数字英文字母喽?
preg_match("/^[a-z0-9]+[^_]$/g",$a);没测手写. 自己看下类库

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